EP0087356A1 - Abfallverbrennungsofen mit Schütttrichter und vertikaler mittlerer Zuluftöffnung - Google Patents

Abfallverbrennungsofen mit Schütttrichter und vertikaler mittlerer Zuluftöffnung Download PDF

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Publication number
EP0087356A1
EP0087356A1 EP83400305A EP83400305A EP0087356A1 EP 0087356 A1 EP0087356 A1 EP 0087356A1 EP 83400305 A EP83400305 A EP 83400305A EP 83400305 A EP83400305 A EP 83400305A EP 0087356 A1 EP0087356 A1 EP 0087356A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
hopper
oven
plane
vertical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP83400305A
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English (en)
French (fr)
Inventor
Pierre Chamay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NOUVELLE DE CONSTRUCTIONS METALLIQUES DE DINOZE Ste
Original Assignee
NOUVELLE DE CONSTRUCTIONS METALLIQUES DE DINOZE Ste
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NOUVELLE DE CONSTRUCTIONS METALLIQUES DE DINOZE Ste filed Critical NOUVELLE DE CONSTRUCTIONS METALLIQUES DE DINOZE Ste
Publication of EP0087356A1 publication Critical patent/EP0087356A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/002—Incineration of waste; Incinerator constructions; Details, accessories or control therefor characterised by their grates

Definitions

  • the invention relates to an oven for the incineration of garbage, consisting of a hopper surmounted by a vault with at least one closable orifice for loading and a chimney stack, the hopper narrowing down to to combustion air inlet grids, which can be eclipsed for the evacuation of the ashes, nozzle means extending vertically from the grates to the roof.
  • the ovens For autonomous incineration of garbage, i.e. without the use of an auxiliary fuel such as fuel oil, the ovens must be designed to allow self-sustaining combustion until the combustible materials are used up, practically without the intervention of an oven operator.
  • the ovens In the context of autonomous incineration, that is to say without the use of an auxiliary fuel such as fuel oil, garbage with a tonnage corresponding to the scouring of a city of a few thousand inhabitants, the ovens must be designed to allow self-sustaining combustion until the combustible materials are exhausted, without this combustion requiring the active presence of an oven conductor for the duration of an incineration cycle.
  • an auxiliary fuel such as fuel oil, garbage with a tonnage corresponding to the scouring of a city of a few thousand inhabitants
  • Garbage and in particular household garbage, constitutes a fuel with a high water content (usually 60 ° b), with an irregular but often small particle size, and often with a soft consistency, so as to form agglomerates under the effect of accumulations, these agglomerates preventing air circulation in the mass.
  • the combustion self-maintenance due to the amount of water to evaporate, requires an active circulation of gas in the mass, combustion air and smoke.
  • the active hearth it is necessary for the active hearth to be located and gradually supplied with fuel.
  • the oven the shape of a hopper surmounted by a vault through which is carried the loading of garbage, and which carries one or more chimneys, while combustion air intake grilles are arranged at the base of the hopper.
  • the hearth is formed in the vicinity of these grates, and as combustion progresses the garbage from the upper layers in the hopper replace the consumed garbage, descending under their own weight.
  • French patent application No. 80 16601 published under the number 2 482 260, describes a faur of this kind.
  • This oven has a hopper in a square base pyramid, the grids being held by a cross support to form the small base of the hopper.
  • Four tubular chimneys or nozzles with barred walls are held by gussets on the walls of the hopper to be placed, above the branches of the cross support, substantially tangent to the centers of the sides of the small base.
  • the vault consists of a parallelepipedic box with a central loading orifice and two strains of lateral chimneys.
  • the object of the invention is therefore to provide a furnace for the incineration of garbage in which combustion is easy to maintain, which is simple to operate, and the capacity of which can be adapted to needs without major new study.
  • the invention provides an oven intended for the incineration of garbage and consisting of a hopper surmounted by a vault with at least one closable orifice for loading and a chimney stack, the hopper narrowing down to the bottom.
  • vertical nozzle means with perforated walls extending from the grates to the vault, characterized in that the hopper has parallel vertical walls, two hearths inclined perpendicular to the vertical walls on either side of a vertical plane of symmetry of the furnace, a flat nozzle extended along said plane of symmetry between the two vertical walls, and two tilting grids each disposed between the base of the nozzle and that of a respective hearth, with an inclination opposite to that of this hearth, the vault consisting of two hoods opening above the hearths on either side of a central chimney stump which overhangs the tu yere.
  • the hearth is established symmetrically on either side of the base of the nozzle, near the grids; in general, the two halves of the oven, on either side of the plane of symmetry, each operate in the image of the other.
  • Garbage can slide without obstacle along the floors to regularly feed the fireplace; the grids, due to their inclination, are found to be substantially normal to the mean direction of progression of the refuse, so that the ashes are deposited on them in beds of fairly regular thickness.
  • the tilting of the grates allows easy evacuation of the ashes, even loaded with bottom ash.
  • the variations in width of the oven do not disturb the temperature distributions in the longitudinal vertical planes; in other words, the operation of the oven is not disturbed by a change in capacity obtained by expanding the oven.
  • the chimney stack comprises a parallelepipedic box provided with removable dust baffles.
  • the nozzle walls are made up of pairs of vertical bars joined together by normal studs in the plane of symmetry of the furnace, with two mesh linings starting from the base of the nozzle while the other stops halfway up. .
  • the oven comprises a metal frame 1, of substantially parallelepiped shape, resting on a raft 4 and disposed between a platform 2, and a concrete veil 3, parallel to the vertical support of the median.
  • the oven proper comprises a hopper 5, bounded laterally by two vertical walls 14 and 14 'adjacent respectively to the web 3 and to the support of the embankment 2, and longitudinally by two inclined decks 11 and 11', perpendicular to the plane of the figure 1, and symmetrical with respect to a vertical plane, perpendicular to the plane of Figure 1, which constitutes the general plane of symmetry of the furnace.
  • the floors 11 and 11 ' are supported by a series of pillars llb, ll'b resting on the raft 4.
  • the oven comprises, above the hopper 5, a vault 6, formed of two hoods 10 and 10', in form of wedges, disposed respectively above the floors 11 and 11 ', and capable of being raised, by pivoting around axes 10a, 10'a in the vicinity of the upper end of the floors 11 and 11', and corresponding substantially at the corner edge.
  • Hoods 10 and 10 ', in position closure are folded down on either side of a stump 7, which supports a chimney 9 terminated by a miter 9a.
  • a flat nozzle 13, resting on punches 30, is disposed along the plane of symmetry of the furnace, extending from a vertical wall 14 to the other 14 ', the nozzle walls being perforated as will be specified with reference in Figure 4.
  • tilting grids 12 and 12' At the base of the hopper 5, between the base of the nozzle 13 and those of the sole 11 and 11 'are disposed tilting grids 12 and 12', inclined in the opposite direction of the corresponding silk, with a slope such as the mediating plane grids 12, 12 ′ is substantially bisector of the dihedral formed by the nozzle 13 and the corresponding sole. Note that the lower ends of the sole 11 and 11 'are constituted by fixed grids lla and ll'a.
  • a box 8 provided with baffles 22.
  • the base 20 of the box 8 is hooked on wings welded to the frame of the box 7, by means of assemblies 21, 21 'of bars and rods, below grooves where the end flanges of the covers 10 and 10' are placed.
  • the nozzle 13 rests on a set of punches 30, these being provided with ears 31, 31 'at their upper end, for the articulation of the tilting grids.
  • This nozzle is formed by beams of refractory steel scales composed of two uprights 33 connected by stirrups 33a, 33b, 33c, the latter being directed along the thickness of the nozzle.
  • the scales are maintained by refractory cast iron bars 32, extended along the width of the nozzle, perpendicular to the plane of the figure.
  • the uprights 33 of ladders form vertical bars, arranged in the plane of the walls of the nozzle 13.
  • first lining 35, 35 ′ formed of panels square mesh screen of refractory steel wire, this lining 35, 35 'extending over substantially the entire height of the nozzle.
  • second lining 36, 36 ′ also in square mesh.
  • the oven is designed to operate at the rate of household refuse collection, corresponding, in the example chosen, to a daily tonnage of around 25 m 3 .
  • the hoods 10 and 10 ' being raised (like the hood 10 in FIG. 1), the car bodies, approaching on the quay 2, dump the garbage with which they are loaded on the sole 11 or 11'; the space between the raised hoods 10 and 10 'and the chimney stack 7 corresponds to the size of the skips.
  • the loading of the oven being finished and substantially balanced on either side of the nozzle 13, the covers 10 and 10 ′ are folded down, and the ignition beds ignited.
  • the nozzle 13 works mainly in evacuating the fumes towards the vault 6 and the chimney 9, the fireplaces being established in the zones immediately above the grids 12, 12 ', lla, 11'a. Then the fumes evaporating the water from the masses of rubbish crossed, the fireplaces spread out in a slope against the lower part of the nozzle; moreover, the garbage distillation gases which accompany the fumes burn on contact with the air which penetrates through the base of the nozzle under the effect of the draft.
  • the combustion of garbage maintains itself, the mass of garbage descending along the hearth, as well as along the nozzle, so that the average direction descent is substantially normal to the grids 12, 12 '.
  • the ashes are formed into beds of approximately regular thickness. Practically the combustion of the charge of the oven, started at the beginning of the afternoon, ends at the end of the evening, so that at the beginning of the morning of the next day it is possible to evacuate the cooled ashes.
  • the furnace has a planar structure parallel to the plane of FIG. 1. It follows that, except in immediate contact with the vertical walls 14 and 14 ′, there is no speed gradient in a transverse direction (normal in the plan of figure 1). The regime invariance in this transverse direction implies that the modification of the dimensions of the furnace in this direction only modifies the capacity of the furnace, and therefore practically does not modify the combustion cycle or its efficiency.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
EP83400305A 1982-02-18 1983-02-14 Abfallverbrennungsofen mit Schütttrichter und vertikaler mittlerer Zuluftöffnung Withdrawn EP0087356A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8202712A FR2521693B1 (fr) 1982-02-18 1982-02-18 Four pour l'incineration d'ordures, en tremie a tuyere verticale centrale
FR8202712 1982-02-18

Publications (1)

Publication Number Publication Date
EP0087356A1 true EP0087356A1 (de) 1983-08-31

Family

ID=9271122

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83400305A Withdrawn EP0087356A1 (de) 1982-02-18 1983-02-14 Abfallverbrennungsofen mit Schütttrichter und vertikaler mittlerer Zuluftöffnung

Country Status (3)

Country Link
EP (1) EP0087356A1 (de)
ES (1) ES519861A0 (de)
FR (1) FR2521693B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572497A1 (fr) * 1984-10-25 1986-05-02 Sopromape Sarl Four auto-incinerateur d'ordures menageres a allumage mixte et structure transversale modulaire
CN105091032A (zh) * 2015-09-28 2015-11-25 郑文娟 翻转式燃煤炉
CN105114985A (zh) * 2015-09-28 2015-12-02 郑文娟 双杠杆燃煤炉具
CN106322399A (zh) * 2016-11-19 2017-01-11 无锡市智锋金属科技有限公司 固废焚烧炉的摆动式炉排
CN106439848A (zh) * 2016-11-19 2017-02-22 无锡市智锋金属科技有限公司 一种燃气助燃垃圾焚烧炉

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2037052A1 (de) * 1970-07-25 1972-02-03 Wallmuller, Leonhard, 8532 Bad Windsheim Auskleidung von Mull Verbrennungsanlagen, Abgaskaminen und ahnlichen Einrichtungen mit säurefesten Stoffen (Zementen), in Form von Rundkaminen und vorgefertigten Platten
FR2344789A1 (fr) * 1976-03-16 1977-10-14 Pechoux Fernand Four incinerateur pour ordures menageres
FR2425613A1 (fr) * 1978-05-12 1979-12-07 Pechoux Daniel Four incinerateur pour ordures menageres
FR2458751A1 (fr) * 1979-06-12 1981-01-02 Raffin Rene Four incinerateur pour ordures
DE2931232A1 (de) * 1979-08-01 1981-02-19 Erwin Israel Abgasfuehrungselement zur verbindung der abgasseite einer feuerstelle mit einem kaminanschluss
FR2482260A1 (fr) * 1980-05-12 1981-11-13 Bouverat Maurice Four incinerateur, du type a grilles multiples

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2037052A1 (de) * 1970-07-25 1972-02-03 Wallmuller, Leonhard, 8532 Bad Windsheim Auskleidung von Mull Verbrennungsanlagen, Abgaskaminen und ahnlichen Einrichtungen mit säurefesten Stoffen (Zementen), in Form von Rundkaminen und vorgefertigten Platten
FR2344789A1 (fr) * 1976-03-16 1977-10-14 Pechoux Fernand Four incinerateur pour ordures menageres
FR2425613A1 (fr) * 1978-05-12 1979-12-07 Pechoux Daniel Four incinerateur pour ordures menageres
FR2458751A1 (fr) * 1979-06-12 1981-01-02 Raffin Rene Four incinerateur pour ordures
DE2931232A1 (de) * 1979-08-01 1981-02-19 Erwin Israel Abgasfuehrungselement zur verbindung der abgasseite einer feuerstelle mit einem kaminanschluss
FR2482260A1 (fr) * 1980-05-12 1981-11-13 Bouverat Maurice Four incinerateur, du type a grilles multiples

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572497A1 (fr) * 1984-10-25 1986-05-02 Sopromape Sarl Four auto-incinerateur d'ordures menageres a allumage mixte et structure transversale modulaire
CN105091032A (zh) * 2015-09-28 2015-11-25 郑文娟 翻转式燃煤炉
CN105114985A (zh) * 2015-09-28 2015-12-02 郑文娟 双杠杆燃煤炉具
CN105114985B (zh) * 2015-09-28 2020-07-03 何世旺 双杠杆燃煤炉具
CN106322399A (zh) * 2016-11-19 2017-01-11 无锡市智锋金属科技有限公司 固废焚烧炉的摆动式炉排
CN106439848A (zh) * 2016-11-19 2017-02-22 无锡市智锋金属科技有限公司 一种燃气助燃垃圾焚烧炉

Also Published As

Publication number Publication date
ES8401603A1 (es) 1983-12-01
ES519861A0 (es) 1983-12-01
FR2521693A1 (fr) 1983-08-19
FR2521693B1 (fr) 1989-03-24

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Inventor name: CHAMAY, PIERRE